User comments

Hello everyone. I'm doing some tests with the NetModule and work well even though I have followed the instructions and “reset” the Firewall with the last of three commands that are suggested in the Help.
The NetModule works even if personally I managed to get it going in either auto SoftAP and not in Station DHCP. Probably I have to set something in the router ?

I got satisfaction in doing work for 3 items Thereminici all together: Netmodule, NetHAL and Theremino Voice. Practically by connecting only one LED (with fall resistance) on a digital pin of NetModule is realized immediately “Wireless Voice Activated LEDS”! Seeing is believing!

I tried to make a FlickerMeter using the component on Board of small modules “Finger HeartBeat Sensor” the Keyes, that we work for that purpose (detect beats) but the component that acts as a receiver would seem to work, Once disassembled, as a light sensor to detect the flickering.
Can anyone tell me if they are phototransistors or photodiodes?
I did not find on the WEB no pattern of such moduletti, But assuming the component as a phototransistor LTR series (IR?) (pinout: Ir Emitter/Collector) It seems to work: the master receives the signal and decodes it FlickerMeter indicating plausible values, just that you have to work with low resistance values set via potentiometer.
Let me start by saying that I have already ordered the phototransistor indicated on theremino.com but you know…. the desire to experiment…!

If you have to hold the potentiometer on low then it is definitely a phototransistor, and you've also hooked up right.
With transistors stated by us shall you would have the same results, so if you still can not get them.
If you always work with a lot of light, and then you have to hold the potentiometer very low, and hard to adjust it, then you could replace the potentiometer with one of lowest value.

The Keyes KY-039 whack to detect heartbeats, but in most places I read that mounts a normal photo transistors.

They say it's an infrared phototransistor and so should go wrong (not very sensitive to visible light), but you say you have to keep the trimmer down and also from images have a transparent envelope and not black.

So I think it's an unfiltered and phototransistor that is properly sensitive to normal light. So it should be fine.

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